Brake light system



FIG. 1 is an upper perspective view of a brake light system showing my new design;

FIG. 2 is a front view of a brake light system showing my new design;

FIG. 3 is a rear view of a brake light system showing my new design;

FIG. 4 is a top view of a brake light system showing my new design;

FIG. 5 is a bottom view of a brake light system showing my new design;

FIG. 6 is a left side view of a brake light system showing my new design; and,

FIG. 7 is a right side view of a brake light system showing my new design.

Any shading and cross-hatching are not features of the design but are utilized to illustrate the surface contours of the brake light system in the drawings. 

The ornamental design for a brake light system, as shown and described. 